正确答案: C
拉出气缸套进行磁粉探伤
题目:船上吊缸检修一般不必()。
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学习资料的答案和解析:
[单选题]动力装置有效热效率是指()。Ⅰ.每小时螺旋桨推力功的相当热量与同一时间内动力装置消耗的燃油完全燃烧所发出的总热量之比Ⅱ.3600kJ与动力装置每千瓦小时所消耗燃油(燃油消耗率的燃油)的热量之比
Ⅰ,Ⅱ都对
[单选题]柴油机说明书规定的定期吊缸检修期是在其()进行。
C.随机故障期末
[单选题]位于喷油泵和高压油管之间的出油阀,其作用有()。Ⅰ.止回;Ⅱ.便于排除空气;Ⅲ.缩短喷油迟后阶段;Ⅳ.控制高压油管中的剩余压力。
Ⅰ+Ⅱ+Ⅲ+Ⅳ
[单选题]() the supercharge pressure is, () power an engine develops.
The higher;the more
[单选题]() are mounted on and bolted to the bed-plate cross girders.
The frame
[单选题]On a four-stroke diesel engine, when the piston is driven downwards by the expanding gas, it delivers power to the crankshaft through the ().
connecting rod
[单选题]The lower end of each piston rod is reduced in diameter to fit a bore in (), this being secured to the piston rod by a nut.
the cross-head
[单选题]The oil is drawn from a drain tank through (), one of a pair of pumps, into one of fine filters.
a strainer